Commutating type armature



' Dec. 21, 1937. w, M R ULL 2,103,166

COMMUTATING TYPE ARMATURE Filed Dec. 11, 1956 Inventor:

by fizwagrgtejfzorvili,

is Attor heg.

Patented Dec. 21, 1937 2,103,166

UNITED STATES PATENT OFFICE COMMUTATING TYPE ARMATURE Wayne J. Morrill, Fort Wayne, Ind., assignor to General Electric Company, a corporation of New York Application December 11, 1936, Serial No. 115,372 3 Claims. (01. 1'71--206) This invention relates to dynamo-electric macommutated winding element is correspondingly chines, and more particularly to armature winddecreased and commutation is improved. ings for commutating type machines. While I have illustrated and described my in- An object of my invention is to improve the vention as applicable to a lap winding, it is ap- 5 commutation of such machines by .providing parent that it may also be used in machines 5 them with a special type of winding. I accomprovided with wave windings. Modifications of plish this by dividing each winding element of my invention will occur to those skilled in the the winding of the rotatable member of the maart, and I desire it to be understood, therefore, chine into a number of sections arranged in adthat my invention is not to be limited to the Zi ots a d C n e te in s i s between adparticular arrangementdisclosed, and I intend jacent commutator segments. in the appended claims to cover all modifications Fu he bj c s a d a va a e o my n e which do not depart from the spirit and scope of tion will become apparent, and my invention will my invention.

be better understood from the following descrip- What I claim as new and desire to secure by tion refe i o t e a c mp y d a and Letters Patent of the United States is: the features of novelty which charac er ze y 1. A rotatable member for a dynamo-electric invention Wi be Pointed Out With Dartiflulsrity machine having a slotted core and a commutain theclaims annexed t a d forming p tor, a winding including a plurality of winding of this sp fi elements, each of said winding elements being For a better unde s a d of my invention, formed of a plurality of coils extending over a 20 reference is made to t e a o p drawing normal coil pitch and connected in series, cor- Which rep a Partial diagrammatic develresponding coil sides of each of said coils of n t Of an armature Of a dynamo-electric each of said winding elements being arranged chine hav g a p Winding embodying my inVehin adjacent slots of said core, and each of said tionslots of said core having a coil side of a different 23 In the d a g, an armature Winding is Shown coil of adjacent winding elements of said windhaving a plurality of winding elements, each 1ng comp t evils or sections, 1 a d 2, each of 2. A rotatable member for a dynamo-electric which extends over a full COii pitch for the parmachine having a slatted core and a om ticular machine; however, these coil sections also g t a winding including a plurality of winding could each be fractional pitch coils. These two elements, h of d winding elements being coils are shown connected in series at 3, and these formed of t coils extending over a normal i two series-Connected Coils are Connected at 4 pitch and connected in series, corresponding coil a d 5 to adjacent commutator bars sides of each of said coils of each of said winding 5 sp coil sides 1 X a, and 9 u each elements being arranged in adjacent slots of said 0011 and respectively of each wmdmg core, and each 0! said slots of said core having ment are arranged adjacent slqts H of a a coil side of a different coil of adjacent winding slotted core, and a coil side of a different coil elements of Said winding of adjacent winding elements is arranged in each 0 slot of the core. By this arrangement, the self- A testable membterdfor dynamo-electric 40 induction of each winding element is lessened machine aving s10 te f cqmmutator' by its subdivision into adjacent slots, and the a winding mined Plumhty winding mutual induction between adjacent winding elements connfacted to adlacent commutator f ments is increased because of the presence in merits of said commutator, each of said winding 5 a single slot of coil sides of adjacent windin elements being formed of two coils connected in elements. In this manner, the energy of t series and arranged in adjacent slots of said core winding element undergoing commutation is and a Slot being p i with t least one partly transferred to the next adjacent winding coil side of two adjacent winding elements of element by its mutual induction therewith, and said winding.

consequently the commutated current of the WAYNE J. MORRILL. 50 

